Credit: The Associated Press

In this Aug. 1, 2012 file photo, Jeffrey Zients testifies on Capitol Hill in Washington. President Barack Obama is calling Zients to help correct problems with the new federal health care website. The White House says Zients will assist a team that is said to be working around the clock on the site, www.healthcare.gov. (AP Photo/J. Scott Applewhite, File)

WASHINGTON — It should be working well by the end of November. That's the Obama administration's rough timetable for completing a long list of fixes to HealthCare.gov, the new, trouble-plagued website for uninsured Americans to get coverage.

Summarizing a week's worth of intensive diagnostics, the administration acknowledged Friday the site has dozens of complex problems and tapped a private company to oversee fixes.